Brianna Amingwa is the Environmental Education Supervisor at John Heinz National Wildlife Refuge at Tinicum. She manages the Refuge’s robust education program that serves nearly 18,000 students annually, trains teachers to utilize the outdoor classroom, and coordinates partner schools and programming.

Tyra Bryant-Stephens, M.D., is a board-certified pediatrician in clinical primary care practice for over 30 years and Associate Professor of Pediatrics at the Children’s Hospital of Philadelphia. She is the founder of the Community Asthma Prevention Program at CHOP, an asthma program that implements asthma interventions in underserved, under-resourced inner-city communities.

Joseph A. Caesar, M.S. CED, focuses on healthy communities and environmental impact. He is a senior community initiative specialist for Philadelphia Parks and Recreation. He previously worked for the Fairmount Park Commission.

Anna Du invented a remotely operated vehicle that detects microplastics on the ocean floor, and developed an AI-based spatial mapping system to predict microplastic hot-spots. She has also created the Deep Plastics Initiative campaign to educate others about preventing and cleaning up ocean plastics pollution.

Amia Hines is a mental health therapist in Philadelphia. She has worked with children with behavior challenges, low-income youth, and adults with mental health disorders. 

Maurice Jones is the founder and general manager at PAR-Recycle Works, a nonprofit electronics recycler in Philadelphia that provides transitional employment to people returning from prison. 

Timothy J. Maguire, Ph.D., is the biogeochemistry lead at the Patrick Center for Environmental Research at the Academy of Natural Sciences of Drexel University. He explores the effects of coastal human populations, urban infrastructure, agriculture, and the historic development of cities to understand how biogeochemical cycles of nutrients are changing now and forecasting the future.

Mike Marquette is logistics senior manager with Quest Diagnostics. During his 17 years with Quest, he has held several positions in logistics operations and fleet and project management.

Waffiyyah Murray is a nationally recognized expert in transportation equity, with a background in nonprofit leadership and youth development. As Indego program manager, she is responsible to oversight, planning, and management of Philadelphia’s bike share program.

Michael Stern is curator of primates and small mammals at the Philadelphia Zoo. He is also cofounder of New Nature Foundation, which strives to conserve wild animals and wild places through education, empowerment and an emphasis on creative solutions that promote people living in harmony with nature. NNF’s current programs include long-term partnerships in Western Uganda and Northern Vietnam.

Rachel D. Valletta, Ph.D., is an earth and environmental scientist who is dedicated to helping communities understand and prepare for the impacts of climate change. Her research has taken her to mountain ranges across the globe and to the glaciated landscapes of our Earth’s polar regions, the Arctic and Antarctic.